Geodesy
WGS84 accuracy
This note belongs to the full article WGS 84: World Geodetic System 1984, which covers the theory, a worked example, FAQ and references. Read it there for the complete explanation.
Core checks for this topic
- Confirm the source coordinate reference system, datum realization and units before processing.
- Validate geometry, control points and attribute fields on a small sample first.
- Compare the processed sample with independently known coordinates or measurements.
- Record the method, parameters and tolerances used so the deliverable can be audited.
Full guides in Geodesy
- WGS 84: World Geodetic System 1984Full article
- Datum Transformations: Helmert, Grids and AccuracyFull article
- Grid Shift Transformations (NTv2, NADCON, GeoTIFF)Full article